package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.exception.SetmealEnableFailedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.DishVO;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;

/**
 * 套餐业务实现
 */
@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    @Override
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    @Override
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

    @Override
    public void save(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);

        setmealMapper.save(setmeal);
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDTO.getSetmealDishes())
            setmealDish.setSetmealId(setmeal.getId());
        setmealDishMapper.insertBatch(setmealDishes);
    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        if(setmealDTO.getCategoryId()!=null) {
            Long categoryId = Long.valueOf(setmealDTO.getCategoryId());
            setmeal.setCategoryId(categoryId);
        }
        PageHelper.startPage(setmealDTO.getPage(), setmealDTO.getPageSize());
        Page<SetmealVO> page = setmealMapper.pageQuery(setmeal);
        for(SetmealVO setmealVO : page.getResult()){
            setmealVO.setSetmealDishes(setmealDishMapper.getSetmealDishList(setmealVO.getId()));
        }
        return new PageResult(page.getTotal(),page.getResult());


    }

    @Override
    public void update(Integer status, Long id) {
        setmealMapper.updateStatus(status, id);
    }

    @Override
    public SetmealVO getById(Long id) {
        SetmealVO setmealVO = new SetmealVO();
        Setmeal setmeal= setmealMapper.getById(id);
        List<SetmealDish> setmealDishes = setmealDishMapper.getSetmealDishList(id);
        BeanUtils.copyProperties(setmeal,setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Transactional
    @Override
    public void delete(List<Long> ids) {
        setmealMapper.deleteByIds(ids);
        setmealDishMapper.deleteBySetmealIds(ids);
    }

    @Transactional
    @Override
    public void update(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        setmealMapper.update(setmeal);
        List<Long> list = new ArrayList<>();
        list.add(setmeal.getId());
        setmealDishMapper.deleteBySetmealIds(list);
        setmealDTO.getSetmealDishes().forEach(setmealDish -> setmealDish.setSetmealId(setmeal.getId()));
        setmealDishMapper.insertBatch(setmealDTO.getSetmealDishes());
    }
}
